<template>
  <div>
    <!-- 面包屑区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片区域 -->
    <el-card gutter>
      <!-- 搜索与添加区域 -->
      <el-row :gutter="20">
      <el-col :span="8">
        <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList" @change="getUserList">
          <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
      </el-col>
      <el-col :span="4">
        <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
      </el-col>
      </el-row>
      <!-- 用户类表区域 -->
      <el-table :data="userlist" border stripe>
        <el-table-column type="index" label="序列"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
              <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>           
            <!-- 删除按钮 -->
              <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>           
            <!-- 分配角色按钮 -->
            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
            </el-tooltip>            
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[1, 2, 5, 10]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total">
    </el-pagination>
    </el-card>
    <!-- 添加用户的对话框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%" @close="addDialogClosed">
      <!-- 内容主体区域 -->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部按钮区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
     <!-- 修改用户的对话框 -->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="50%" @close="editDialogClosed">
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
      <el-form-item label="用户名">
        <el-input v-model="editForm.username" disabled></el-input>
      </el-form-item>
      <el-form-item label="邮箱" prop="email">
        <el-input v-model="editForm.email"></el-input>
      </el-form-item>
      <el-form-item label="手机" prop="mobile">
        <el-input v-model="editForm.mobile"></el-input>
      </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 分配角色的对话框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible" width="50%" @close="setRoleDialogClosed">
      <div>
        <p>当前的用户: {{userInfo.username}}</p>
        <p>当前的角色: {{userInfo.role_name}}</p>
        <p>分配新角色: 
            <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option
              v-for="item in rolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id">
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
      <el-button @click="setRoleDialogVisible = false">取 消</el-button>
      <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
  export default {
    data() {
      // 验证邮箱的校验规则
       		//验证邮箱的规则
        var checkEmail = (rule,value,cb) =>{
            const regEmail = /^([a-zA-Z]|[0-9])(\w|\-)+@[a-zA-Z0-9]+\.([a-zA-Z]{2,4})$/;
            if(regEmail.test(value)){
                //合法的邮箱
                return cb()
            }
            cb(new Error("请输入带@的邮箱"))
        }
        //验证手机号码的规则
        var checkMobile = (rule,value,cb) =>{
            const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/ 
            if (regMobile.test(value)) { 
                //合法的手机号码
                return cb() 
            }
            cb(new Error('手机号码格式不正确'))     
        }

      return {
        // 获取参数的类表对象
        queryInfo: {
          query: '',
          // 当前的页数
          pagenum: 1,
          // 当前页数显示的条数
          pagesize: 2
        },
        userlist: [],
        total: 0,
        // 控制添加用户的显示与隐藏
        addDialogVisible: false,
        // 添加用户的表单数据
        addForm: {
          username: '',
          password: '',
          email: '',
          mobile: ''
        },
        // 添加表单的验证规则
        addFormRules: {
          username: [
            {required: true, message: '请输入用户名', trigger: 'blur'},
            {
              min: 3,
              max: 10,
              message: '用户名的长度在3~10个字符之间',
              trigger: 'blur'
            }
          ],
          password: [
            {required: true, message: '请输入密码', trigger: 'blur'},
            {
              min: 6,
              max: 15,
              message: '密码的长度在6~15个字符之间',
              trigger: 'blur'
            }
          ],
          email: [
           {required: true,message: '请输入邮箱',trigger: 'blur'},
           {validator: checkEmail, trigger: 'blur'}
          ],
          mobile: [
            {required: true,message: '请输入手机号码',trigger: 'blur'},
            {validator: checkMobile, trigger: 'blur'}
          ]

        },
         // 控制修改用户信息的显示与隐藏
        editDialogVisible: false,
        // 查询到用户信息的对象
        editForm: {},
        editFormRules: {
          email: [
           {required: true,message: '请输入邮箱',trigger: 'blur'},
           {validator: checkEmail, trigger: 'blur'}
          ],
          mobile: [
            {required: true,message: '请输入手机号码',trigger: 'blur'},
            {validator: checkMobile, trigger: 'blur'}
          ]
        },
        // 控制分配角色区域的显示与隐藏
        setRoleDialogVisible: false,
        // 需要被分配角色的用户信息
        userInfo: {},
        // 所有角色列表数据
        rolesList: [],
        // 已选中角色的id值
        selectedRoleId: ''
      }
    },
    created() {
      this.getUserList()
    },
    methods: {
     async getUserList() {
      const {data: res} = await this.$http.get('users', {params: this.queryInfo})
      if(res.meta.status !== 200) return this.$message.error('获取用户类表失败!')
      this.userlist = res.data.users
      this.total = res.data.total
      // console.log(res);
      
      },
      // 监听 pagesize 改变的事件
      handleSizeChange(newSize) {
          // console.log(newSize);
          this.queryInfo.pagesize = newSize
          this.getUserList()
          
      },
      // 监听 页码值 改变的事件
      handleCurrentChange(newPage) {
          // console.log(newPage);
          this.queryInfo.pagenum = newPage
          this.getUserList()
          
      },
       // 监听 Switch 的开关状态的改变
      async userStateChanged(userinfo) {
            // console.log(userinfo);
          const {data: res} = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
          if(res.meta.status !== 200) {
            userinfo.mg_state = !userinfo_.mg_state
            return this.$message.error('更新用户状态失败!')
          }
          this.$message.success('更新用户状态成功!')
       },
       // 监听添加用户重置效果
       addDialogClosed() {
         this.$refs.addFormRef.resetFields()
       },
       // 点击按钮添加新用户
       addUser() {
         this.$refs.addFormRef.validate(async valid => {
          //  console.log(valid);
           if(!valid) return
           // 可以发起添加用户的网络请求
          const {data: res} = await this.$http.post('users', this.addForm)
          if(res.meta.status !== 201) {
              this.$message.error('添加用户失败!')
          } 
          this.$message.success('添加用户成功!')
          // 隐藏添加用户的对话框
          this.addDialogVisible = false
          // 重新获取用户类表数据
          this.getUserList()
         })
       },
         // 显示编辑用户的对话框
      async showEditDialog(id) {
        // console.log(id);
       const {data: res} = await this.$http.get('users/' + id)
        if(res.meta.status !== 200) {
         return this.$message.error('查询用户信息失败!')
        }
        this.editForm = res.data
       this.editDialogVisible = true
       },
       // 监听修改用户对话框的关闭事件
       editDialogClosed() {
         this.$refs.editFormRef.resetFields()
       },
       // 修改用户信息并提交
       editUserInfo() {
         this.$refs.editFormRef.validate(async valid => {
          //  console.log(valid);
          if(!valid) return
          // 发起用户信息的数据请求
          const {data: res} = await this.$http.put('users/' + this.editForm.id, {
            email: this.editForm.email, 
            mobile:  this.editForm.mobile
          })
          if(res.meta.status !== 200) {
              this.$message.error('更新用户信息失败!')
          } 
           // 隐藏添加用户的对话框
          this.editDialogVisible = false
          // 重新获取用户类表数据
          this.getUserList()
          this.$message.success('更新用户信息成功!')
         
           
         })
       },
       // 根据文本删除对应的id
      async removeUserById(id) {
        //  console.log(id);
        // 弹框提示询问用户是否删除信息
       const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => err)
         
        // console.log(confirmResult);
        if(confirmResult !== 'confirm') {
          return this.$message.info('已取消删除')
        }
        // console.log('确认了删除');
        const {data: res} = await this.$http.delete('users/' + id)
          if(res.meta.status !== 200) {
            this.$message.error('删除用户失败!')
          } 
          this.$message.success('删除用户成功!')
          // 重新获取用户类表数据
          this.getUserList()
       },
       // 展示分配角色的对话框 
      async setRole(userInfo) {
         this.userInfo = userInfo

         // 在展示对话框之前 获取所有角色的列表
        const {data: res} = await this.$http.get('roles')
        if(res.meta.status !== 200) {
            return  this.$message.error('获取角色列表失败!')
          } 
          // this.$message.success('获取角色列表成功!')
         this.rolesList = res.data
         this.setRoleDialogVisible = true
       },
       // 点击按钮分配角色
      async saveRoleInfo() {
         if(!this.selectedRoleId) {
           return this.$massage.error('请选择要分配的角色!')
         }
         const {data: res} = await this.$http.put(`users/${this.userInfo.id}/role`, {
           rid: this.selectedRoleId
         })
          if(res.meta.status !== 200) {
            return this.$message.error('更新角色失败!')
          } 
          this.$message.success('更新角色成功!')
           // 重新获取用户类表数据
          this.getUserList() 
           // 隐藏添加用户的对话框
          this.setRoleDialogVisible = false
         
       },
      // 监听角色对话框的关闭事件
      setRoleDialogClosed() {
        this.selectedRoleId = '',
        this.userInfo = {}
      }
    }
}
</script>

<style lang="less" scoped>
</style>
